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Cash and cash equivalents and Investments and Additional information on the consolidated statements of cash flows - Cash and cash equivalents and Investments (Details) $ in Millions, $ in Millions | Dec. 31, 2017 USD ($) | Dec. 31, 2017 ARS ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 ARS ($)
--- | --- | --- | --- | ---
Cash and cash equivalents |  |  |  |
Cash |  | $ 52 |  | $ 56
Banks |  | 1,312 |  | 878
Time deposits |  | 105 |  | 898
Government bonds at amortized cost |  |  |  | 604
Other short-term investments |  | 99 |  | 1,509
Lebacs at fair value |  | 1,263 |  |
Total cash and cash equivalents | $ 153 | 2,831 | $ 250 | 3,945
Investments |  |  |  |
Total current investments |  | 3,426 |  | 1,751
Total non-current investments |  | 2,657 |  | 347
Government bonds | Financial assets at fair value accounted through profit or loss |  |  |  |
Investments |  |  |  |
Total current investments |  | 371 |  | 1,456
Government bonds - dollar linked | Financial assets at fair value accounted through profit or loss |  |  |  |
Investments |  |  |  |
Total current investments |  | 293 |  |
Government bonds in foreign currency | Financial assets at amortized cost |  |  |  |
Investments |  |  |  |
Total current investments |  | 149 |  | 3
Total non-current investments |  | 2,228 |  | 255
Provincial government and municipal bonds - dollar linked | Financial assets at amortized cost |  |  |  |
Investments |  |  |  |
Total current investments |  | 30 |  | 13
Total non-current investments |  | 42 |  | 61
Provincial and municipal government bonds | Financial assets at amortized cost |  |  |  |
Investments |  |  |  |
Total current investments |  | 8 |  | 9
Total non-current investments |  |  |  | 8
Provincial And Municipal Government Bonds In Foreign Currency | Financial assets at amortized cost |  |  |  |
Investments |  |  |  |
Total current investments |  | 33 |  |
Total non-current investments |  | 386 |  |
Other short-term investments |  |  |  |
Investments |  |  |  |
Total current investments |  | 2,433 |  | 270
Lebacs | Financial assets at fair value accounted through profit or loss |  |  |  |
Investments |  |  |  |
Total current investments |  | 109 |  |
Tuve's Paraguay S.A shares purchase option |  |  |  |
Investments |  |  |  |
Total non-current investments |  |  |  | 22
2003 Telecommunications Fund |  |  |  |
Investments |  |  |  |
Total non-current investments |  | $ 1 |  | $ 1

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- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_45&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B13_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_i&doctype=Standard -URIDate 2017-03-09 + Details
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